Donald langley turner



(No Model.)

D. L. TURNER.

RBLEASING DEVICE.

No. 602,569. Patentedpr. 19, 1898.

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UNTTED STATES PATENT uric.

DONALD LANGLEY TURNER, OF VELLINGTON, NEIN` ZEALAND.

RELEASING DEVICE.

SPECIFICATION forming part of Letters Patent No. 602,569, dated April19, 1898.

l Application filed August 24, 1897. Serial No. 649,394. (No model.)

the ball b' and stem b2 of eyebolt b, which engages with spring c. Theother end of the spring is attached to the eyebolt d, xed in the head ofthe tube f. The exterior of tube g is threaded with any suitable threadto receive the adjustable tube h. The thread shown on the drawings is afine pitch; but the pitch may be increased to any desirable extent.

With ordinary work the clutch ct will remain wholly or partially withinthe adjustable tube h; but under an abnormal strain the said clutch willbe drawn out of the tube and then opening out, as shown on Fig. 3, willbe released from the tube.

The tube 7L may be adj usted by screwing or unscrewing the same upon theinterior tube g, so that it will pass more or less upon the clutch c andmake it necessary that the spring c shall be more or less extendedbefore the clutch can escape. The tube h is provided with a scale h',which may be read while making ne adjustments and may be secured fromturning by set-screwr h2. In some cases the set-screw may be replaced bya lock and key, so that the device cannot be tampered with, but be adjusted by an authorized person only.

On Figs. 4 and 5 the adjustment is made by sliding the eyebolt d in thehead of tube fand then securing the same by means of the conical wedgesd2 and nut d3.

To all whom it may concern.-

Beit known that I, DONALD LANGLEY TUR- NER, a citizen of the UnitedStates, and a resident of 54 Lambton Quay, 1Wellington, in the Colony ofNew Zealand, have invented an Improved Releasing Device, of which thefollowing is a specification.

This invention relates to and its object is to provide a device forreleasing lines, sheets, and the like when they are subjected to anundesirable strain-as, for example, when the sheets of boats or yachtsare strained to such an extent that they must be released to avoiddangerous results. The device is applicable for many purposes where twobodies must be separated or a cord or the like must be released after acertain strain is exerted to avoid breaking the same or damaging thestructure to which such cord is attached-as, for example, it may be usedfor tethering a horse and save the reins from being broken should thehorse start away from fright or other cause, or it may be used withstirrupleathers to release a rider when the foot has been caught in thestirrup after the rider has been thrown from his horse.

The invention is carried into effect by making a clutch which normallypasses within a tube and grips an eyebolt hooked to one end of a spring,the other end of said spring being secured to the farther end of thetube, so that with ordinary work the clutch remains within the tube; butwhen the strain exceeds that for which the device is set the clutch willbe pulled out of the tube and the release effected.

In order that the invention may be most easily understood by a skilledperson, the invention is illustrated on the accompanying drawings, towhich reference will be made while giving a detailed description.

Figure l is an exterior view of the device as arranged for neadjustment. Fig. 2 is a section of the same. Fig. 3 is a perspectiveview of the clutch when opened and the eyebolt released. Fig. 4 is asection of a cheaper form and as arranged for coarser adjustments. Fig.5 is a view of the end of Fig. Il.

Similar letters refer to similar parts.

Referring to the drawings, and more particularly to Figs. l, 2, and 3,the clutch a has jaws c pivoted at a2 and hollowed to receive The stemof the eyebolt is serrated at d4 to engage with a spring-catch d5 toenable adjustment to be made and in the dark to indicate to an operatorthe distance he has moved the stem, and thus to what degree he hasdecreased or increased the strength of the device. The various parts maybe made of any suitable metal, and preferably of brass or similarmetal,which will not readily deteriorate when exposed to the weather.

I wish it to be understood that I do not confine myself to the exactdetails hereinbefore set forth, as these may be modied in several wayswithout departing from the spirit of the invention.

What I claim, and desire to secure by Letters Patent of the UnitedStates, is-

l. A releasing device comprising the clutch, the bolt held thereby, anda casing for holding the clutch closed, said clutch being movablerelative to the casing and adapted to fly open when moved out of saidretaining-casing, substantially as described.

2. In combination, the releasing-clutch, the bolt engaged thereby, theretainingcasing for holding the clutch closed on the bolt, the springfor holding the clutch Within the casing under tension and the rope ordraft device connected to the clutch, substantially as described.

3. In combination, a draft connection as a rope or the like, a movableclutch connecting the parts of said draft device and comprising thepivoted members, and a casing for holding the clutch to its Work until apredetermined strain is reached, said clutch being located Within thecasing, substantially as described.

4. In combination, the clutch, comprising the pivoted members, theeyebolt engaged thereby, the spring connected With the eyebolt at oneend, and the casing to which the other end of the spring is connected,said casing holding the clutch to its Work, the said clutch and springbeing arranged within the casing, substantially as described.

5. In combination, the clutch, comprising the pivoted clutch members,the bolt engaged thereby, the spring and the casing with means ofadjustment for changing the amount of strain necessary to release theclutch from the casin g, the said casing inclosing the clutch and thespring, substantially as described.

6. In combination, the clutch, the two-part casing engaging the same,the eyebolt engaged by the clutch, and the spring connected to theeyebolt and to the casing, the said parts of the casing being adjnstable to vary the strain necessary to release the clutch from thecasing, the said casing containing the said clutch, eyebolt and spring,substantially as described.

In Witness whereof I have hereunto subscribed rny name this 10th day ofJune, 1897.

DONALD LANGLEY TURNER.

In presence of* J. J. DEVINE, FRED. J, FooT.

